> My understanding of an iterator function
here an example of a generator creating an iterator and using closure variables.
use strict;
use warnings;
sub gen_range_step {
my ( $start,$stop,$step ) = @_ ;
my $current = $start;
return sub {
my $val = $current;
$current += $step;
return $val if $val <=$stop;
return;
}
}
my $iter = gen_range_step(5,20,4);
while ( my ($val) = $iter->() ) {
print "$val\n";
}
C:/Strawberry/perl/bin\perl.exe -w d:/tmp/pm/generator_iterator.pl
5
9
13
17
Compilation finished at Sat Nov 13 21:18:20
> but keep in mind I studied engineering and not computer science
I studied mathematics and some CS, and FP was never mentioned.
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